crypto/external/bsd/heimdal/dist/lib/asn1/der_cmp.c

   1 /*      $NetBSD: der_cmp.c,v 1.1.1.2 2014/04/24 12:45:28 pettai Exp $   */
   2
   3 /*
   4  * Copyright (c) 2003-2005 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "der_locl.h"
  37
  38 int
  39 der_heim_oid_cmp(const heim_oid *p, const heim_oid *q)
  40 {
  41     if (p->length != q->length)
  42         return p->length - q->length;
  43     return memcmp(p->components,
  44                   q->components,
  45                   p->length * sizeof(*p->components));
  46 }
  47
  48 int
  49 der_heim_octet_string_cmp(const heim_octet_string *p,
  50                           const heim_octet_string *q)
  51 {
  52     if (p->length != q->length)
  53         return p->length - q->length;
  54     return memcmp(p->data, q->data, p->length);
  55 }
  56
  57 int
  58 der_printable_string_cmp(const heim_printable_string *p,
  59                          const heim_printable_string *q)
  60 {
  61     return der_heim_octet_string_cmp(p, q);
  62 }
  63
  64 int
  65 der_ia5_string_cmp(const heim_ia5_string *p,
  66                    const heim_ia5_string *q)
  67 {
  68     return der_heim_octet_string_cmp(p, q);
  69 }
  70
  71 int
  72 der_heim_bit_string_cmp(const heim_bit_string *p,
  73                         const heim_bit_string *q)
  74 {
  75     int i, r1, r2;
  76     if (p->length != q->length)
  77         return p->length - q->length;
  78     i = memcmp(p->data, q->data, p->length / 8);
  79     if (i)
  80         return i;
  81     if ((p->length % 8) == 0)
  82         return 0;
  83     i = (p->length / 8);
  84     r1 = ((unsigned char *)p->data)[i];
  85     r2 = ((unsigned char *)q->data)[i];
  86     i = 8 - (p->length % 8);
  87     r1 = r1 >> i;
  88     r2 = r2 >> i;
  89     return r1 - r2;
  90 }
  91
  92 int
  93 der_heim_integer_cmp(const heim_integer *p,
  94                      const heim_integer *q)
  95 {
  96     if (p->negative != q->negative)
  97         return q->negative - p->negative;
  98     if (p->length != q->length)
  99         return p->length - q->length;
 100     return memcmp(p->data, q->data, p->length);
 101 }
 102
 103 int
 104 der_heim_bmp_string_cmp(const heim_bmp_string *p, const heim_bmp_string *q)
 105 {
 106     if (p->length != q->length)
 107         return p->length - q->length;
 108     return memcmp(p->data, q->data, q->length * sizeof(q->data[0]));
 109 }
 110
 111 int
 112 der_heim_universal_string_cmp(const heim_universal_string *p,
 113                               const heim_universal_string *q)
 114 {
 115     if (p->length != q->length)
 116         return p->length - q->length;
 117     return memcmp(p->data, q->data, q->length * sizeof(q->data[0]));
 118 }